Liebert Challenger Itr Users Manual

2015-02-09

• 1.0 Introduction
  • 1.1 System Descriptions
    • 1.1.1 Self Contained Systems
      • Air-Cooled Models
      • Water-Cooled Models
      • Glycol-Cooled Models
      • GLYCOOL Models
    • 1.1.2 Chilled Water Models
    • 1.1.3 Split Systems
      • Prop Fan
      • Centrifugal Fan
      • Water/Glycol Condensing Units
• 2.0 Installation
  • 2.1 Room Preparation
  • 2.2 Equipment Inspection
  • 2.3 Location Considerations
    • 2.3.1 Remote Sensor Installation Location
  • 2.4 Equipment Handling
    • 2.4.1 Handling With Skid
    • 2.4.2 Removal of Skid
      • Figure 1 Removing Liebert Challenger ITR from skid
      • Table 1 Unit shipping weights
      • Figure 2 Cabinet dimensions
      • Figure 3 Optional floor stand dimensions
  • 2.5 Piping Considerations
    • 2.5.1 Drain Line
      • Table 2 Piping connection size
      • Figure 4 Piping connections for air-cooled units
      • Figure 5 Piping connections for split system fan coil units
      • Figure 6 Piping connections for water/glycol and GLYCOOL units
      • Figure 7 Piping connections for chilled water self-contained units
  • 2.6 Electrical Connections
    • Figure 8 Electrical connections
  • 2.7 Balancing the Air Distribution
    • 2.7.1 Ducted Applications
    • 2.7.2 Plenum Installation
  • 2.8 Checklist for Completed Installation
• 3.0 Air-Cooled Models
  • 3.1 Condenser Location
  • 3.2 Electrical Connections
    • 3.2.1 Line Voltage
    • 3.2.2 Low Voltage
    • 3.2.3 Lee-Temp/Flood Back Head Pressure Control Condensers
      • Figure 9 Air-cooled condensers
      • Table 3 Air-cooled condenser statistics
  • 3.3 Refrigerant Piping
    • Table 4 Recommended line sizes - OD copper (inches)*
    • Table 5 Equivalent lengths (feet) for various pipe fittings
    • Table 6 Indoor unit refrigerant charge lb (kg) R22 or R407C (per unit serial tag)
    • Table 7 Line charges - refrigerant per 100 ft (30 m) of Type “L” copper tube
    • Table 8 Condenser refrigerant (per serial tag)
  • 3.4 Fan Speed Control Systems
    • 3.4.1 Materials Supplied
    • 3.4.2 Dehydration/Leak Test and Charging Procedures for R22 (standard) or R407C (Optional)
      • Fan Speed Control Type Condenser
      • Dehydration/Leak Test
        • Figure 10 Air-cooled fan speed control general arrangement
    • 3.4.3 Charging
      • Table 9 Refrigerant control settings psi (kPa)
  • 3.5 Lee-Temp/Flood Back Head Pressure Control Systems
    • 3.5.1 Piping
    • 3.5.2 Materials Supplied
    • 3.5.3 Dehydration/Leak Test and Charging Procedures for R22 (Standard) or R407C (Optional)
      • Lee-Temp Control Type Condenser
      • Dehydration/Leak Test
    • 3.5.4 Charging
      • Table 10 Refrigerant control settings psi (kPa)
      • Figure 11 Air-cooled, Lee-Temp general arrangement
• 4.0 Water-Cooled Models
  • 4.1 Piping Considerations
  • 4.2 Condenser
    • Figure 12 Water-cooled general arrangement
  • 4.3 Water Regulating Valve
    • 4.3.1 Water Regulating Valve Adjustment
      • Figure 13 Johnson Controls valve adjustment
    • 4.3.2 Water Regulating Valve Manual Flushing
    • 4.3.3 Testing Valve Function
• 5.0 Glycol/GLYCOOL-Cooled Models
  • 5.1 Drycooler Location
  • 5.2 Drycooler Installation
  • 5.3 Electrical Connections
    • 5.3.1 Line Voltage
    • 5.3.2 Low Voltage
    • 5.3.3 Pump and Drycooler
  • 5.4 Glycol Piping
    • Table 11 Room dew point temperatures
    • 5.4.1 Expansion Tanks, Fluid Relief Valves and Other Devices
  • 5.5 Filling Instructions
    • 5.5.1 Preparing the System for Filling
      • Table 12 Indoor unit glycol volume approximate gallons (liters) max.
      • Table 13 Volume in standard Type “L” copper piping
    • 5.5.2 Glycol Solutions
      • Table 14 Ethylene glycol concentrations
    • 5.5.3 Filling the System
      • Figure 14 Drycoolers and pump packages
      • Figure 15 Pump packages-expansion tank
      • Table 15 Mounting hole dimensional data
      • Table 16 Drycooler data
      • Table 17 Glycol pump data*
      • Figure 16 Glycol general arrangement
      • Figure 17 GLYCOOL general arrangement
  • 5.6 Condenser
  • 5.7 Glycol Regulating Valve
    • 5.7.1 Glycol Regulating Valve Adjustment
    • 5.7.2 Testing Valve Function
      • Table 18 Refrigerant control settings psi (kPa)
• 6.0 Chilled Water Models
  • 6.1 Piping Considerations
    • Figure 18 Chilled water general arrangement - horizontal flow (BR)
• 7.0 Split System Models
  • 7.1 Location Considerations
    • 7.1.1 Air-Cooled Condensing Units
    • 7.1.2 Water/Glycol-Cooled Condensing Units
  • 7.2 Electrical Connections
    • 7.2.1 Line Voltage
    • 7.2.2 Low Voltage
  • 7.3 Piping Considerations
    • 7.3.1 Refrigerant Loop
      • Table 19 Unit refrigerant charge
      • Table 20 Line charges - refrigerant per 100 ft (30 m) of Type “L” copper tube
      • Table 21 Recommended refrigerant lines (R22 or R407C) sizes OD copper
      • Table 22 Line coupling sizes
      • Table 23 Equivalent lengths (feet) for various pipe fittings
      • Figure 19 Refrigerant piping diagram
    • 7.3.2 Quick Connect Fittings
  • 7.4 Outdoor Air-Cooled Condensing Units
    • Figure 20 Outdoor air-cooled condensing unit-horizontal air discharge models
    • Table 24 Horizontal air discharge cabinet and floor planning dimensional data
    • Table 25 Horizontal air discharge piping and electrical connection data
    • Figure 21 Outdoor air-cooled condensing unit-top air discharge models
    • Table 26 Cabinet and floor planning dimensional data - prop fan condensing modules, top air discharge
    • Table 27 Piping and electrical connections - top air discharge
    • Figure 22 Electrical field connections, prop fan condensing module
  • 7.5 Centrifugal Air-Cooled Condensing Units
    • 7.5.1 Installing the Indoor Condensing Unit
      • Table 28 Indoor centrifugal condensing unit
      • Figure 23 Detail of ceiling hanging bracket
    • 7.5.2 Ducting
      • Table 29 Airflow CFM (CMH)
      • Figure 24 Centrifugal air-cooled condensing unit dimensional data
      • Figure 25 Centrifugal air-cooled condensing unit dimensional data (con't.)
      • Figure 26 Split systems general arrangement
  • 7.6 Water and Glycol-Cooled Condensing Units
    • 7.6.1 Piping Considerations
      • Table 30 Water and glycol-cooled unit connection sizes
      • Table 31 Water and glycol-cooled condensing unit data
    • 7.6.2 Condenser Water Requirements
    • 7.6.3 Regulating Valve Adjustment and Testing
    • 7.6.4 Glycol Systems
      • Figure 27 Water/glycol-cooled condensing unit dimensions
      • Figure 28 Water/glycol-cooled condensing unit (con't.)
• 8.0 R407C Refrigerant
  • Table 32 R407C pressure/temperature chart for operation and superheat (discharge/hot gas and suction gas)
  • Table 33 R407C pressure/temperature chart for subcooling only (liquid measurements)
  • 8.1 Calculating Subcooling
    • Example